Eaedolph hayden



(Model.)

B. HAYDEN, Shutter Fastener.

No. 234,126. Patented Nov.. 9,1880.

N PETERS, FHOTO UTHOGRAP UNITED STATES PATENT CFrIcE.

RANDOLPH HAYDEN, OF MIDDLETOWN, CONNECTICUT.

SH UTTER-FASTENER.

SPECIFICATION forming part of Letters Patent No. 234,126, dated November 9, 1880, Application filed April 30, 1880. (Model) To all whom it may concern:

Be it known that I, RANDOLPH HAYDEN, of Middletown, in the county of Middlesex and State of Connecticut, have invented a certain new and useful Improvement in Blind-Fasts, of which the following is a description, reference being had to the accompanying drawings, where- Figure l is a top view of a blind-fast embodying my improvement. Fig. 2 is a top View of same with the upper halt'ot' the outer case or shell removed. Fig. 3 is an end view of the blind-fast from end A, with the end of the latch-lever cut off on plane 90 m. Fig. 4 is an end view of the blind-fast from end B, with that end of the latch-lever cut off on plane 00 m. Fig. 5 is a view of the blind-fast in crosssection on plane as" w.

The invention consists in a latch-lever (i. e., a lever provided with a hook or latching device at either or both ends) so pivoted as to .vibrate diagonally or obliquely relative to either a vertical or horizontal plane, and so that in vibration it has both lateral and vertical movement, the vertical movement bringing gravity into play, so that a spring to bear the lever to a locking position may be dispensed with, and the lateral movement enabling the common pins or staples to be used for the lever to catch upon, in the same way and manner that these common pins or staples are used with those blind-fasts that have a laterally-vibratin g latch-lever pressed upon by a spring.

Blind-taste have heretofore been made havin g a vertically-vibratinglatcl1lever operating by gravity and dispensing with a spring; but they require more nicety of fitting at the first than the laterally-vibrating latch-lever, and they get out of working order with much less sagging or working of the blind than is allowable in the use of the laterally-vibrating latchlever.

The blind-fast herein described has all the advantages of both the laterally and vertically vibrating latch-levers and the defects of neither.

The letters a to denote the two corresponding halves of a shell or casing, exteriorly threaded, that it may be screwed into a blind, kept together when the parts are assembled by using the pivot-pin b as a rivet and heading down the ends.

A lever, 0, located in a plane oblique to the vertical, is pivoted to the screw-casing a a by means of the pin b. Each end of the lever 0 is provided with a flat horizontal catch-plate, 0, having a hook, c, and a horn, c, the inner catch-plate being heavier than the outer catch-plate.

The letter 02 denotes a (part of a) pin or staple, such as is ordinarily driven into a window ledge, upon which, when the blind is being closed, the hook-plate appurtenant to the inner side of the blind strikes and then catches. The letter d denotes a (part of a) similar pin or staple driven into the outside of the house, to co-operate in a corresponding manner with the other end of the latch-lever.

The outer end or head, A, of the case or shell is provided with a mortise, 6, set or lo cated diagonally or obliquely to a horizontal plane. and at right angles, substantially, in the direction of its length to the position of the pivot-pin b. The lever moves and vibrates in this mortise. The opposite end of the case or shell to is also preferably provided with a similarly-located mortise for the opposlte end of the lever to move and vibrate in.

From the foregoing construction it will be seen that the lever, when vibrated, has both a lateral and a vertical movement, the latter bringing gravity into play, thus obviating the use of a spring to bring the inner catch-plate into a locking position, and the lateral movement allowing ot' the use of ordinary pins or staples for the outer catch-plate to hook upon.

I claim as my invention- A blind or shutter fastenin consisting of an oblique lever, c, with its horizontal catchplates 0 c, in combination with and pivoted to a screw-casin g, a to, having oblique slots or mortises e c, constructed and arranged to operate as described.

RANDOLPH HAYDEN. Witnesses:

W. E. SIMONDS, R. F. GAYLORD. 

